Pneumatic painting apparatus



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1 503,282 .0. A. PAASCHE PNEUMATIC PAINTING APPARATUS Filed July 19. 1919 3 Sheets-Sheet 1 0 Wpaeaazea J. A. PAASCHE PNEUMATIC PAINTING RPPARATUS Filed Jul!) 19 1919 3 Sheets-Shaw; 2

Jufiy 29 1924. 1,503,282

J. A. PAASCHE PNEUMATIC PAINTING APPARATUS Filed duly igi, 1919 s sham-sum a v" I l In 41':

STATES 1,503,282 PATENT OFFICE.

JENS A. PAASCHE, O'F CHICAGO, ILLINOIS.

I PNEUMATIC FAINTING APPARATUS.

Application filed July 19, 1919. Serial No. 311,945.

To all whom it may concern:

Be it known that I' JENs'A. PAASCHE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Pneumatic Painting Apparatus, of which the following is a specification.

My invention relates to a pneumatic painting apparatus, and more specifically to an improved device for painting the walls of high buildings, smoke stacks, etc.

The general object of the invention is .to

provide a compact and unitary apparatusof this character, comprising a supporting structure which is arranged to carry the operator and support the elements of the painting means convenient reach of the operator, and means for suspending said supporting structure from an overhead pointalong the wall to be painted and for raising and lowering said structure, said means being operable by the operator from his working position. q

Another object is to provid'ega device adapted to operate at any height and carry its paint supply with it so that only one tube from the ground to the apparatus is required.

A further object is to provide an'apparatus of this character which comprises a supporting frame adapted to be suspended along the wall to be painted, a seat for the operator carried by said frame, apaint tank carried by said frame and located directly beneath the operators seat, means-for spacing said seat and tank away from the Wall to be ainted to provide room for the operator s said paint tank at the right of the operators seat through which head the air' and\ paint fiows'to the paint brush.

Further "objects and advantages of my invention will become apparent as the 'de scription proceeds.

In the accompanying drawings Figure 1 is a side elevation of a device showing one embodiment of my invention. I- Fig. 2 is a. plan view of the same device, the supporting tackle being omitted. Fig. 3 is a front view of the joint between the tank holding strap and one of the-hanger rods. Fig.4 is a section on the line 4-4 of Fig. 3. Fig. 5 is a section on the line-55 of Fig. 2. Fig. 6 is a section through the roller engaging the stack on the line 66 of Fig. 2. Fig. 7 is "a fragmental view showing in section one of eet, and a control head mounted on' the fioor rods and its fastening to the paint tank. Fig. 8 is a section of the scaffold beam near one end showing the attachment of the hanger rods thereto. Fig. 9 is a section' of the scafi'old beam near the' center showing the clip to which the hoisting tackle is attached. Fig. 10 is a section on the line 10-10of Fig. 2 showing the fastening for the set. Fig. 11 is a detail view showing the means for supporting the air brush when not in use. Fig. 12 is a side view of the upper pulley sheai e of the hoisting tackle with one of the side plates removed. Fig. 13 is a view at right angles .to Fig. 12. Fig. 14 is a detail section on the line 21-2l of Fig. 12. Fig. 15 is a side elevation of a track used for supporting the painting outfit adjacent a..wall. Fig. 16 is a section on the line 2323 of Fig. 15. i

' In the embodiment of the invention herein disclosed the paint tank 11 is an elongated cylindrical tank disposed horizontally, and the supporting frame or carriage is especially constructed to conform to the tank. This supporting frame, in the present instance, comprises two U-shap'ed straps 62 which embrace and underlie the opposite ends of the tank 11, the upper ends of each of said straps being connected togetherand spaced apart by rods 64. The straps are the two straps 62, said bar extending parallel withthe tank 11.

The seat 69 for the operator is preferably located immediately overi and centrally of the tank 11, and this seat, in the present instance, is'secured in place by suitable brackets 70 fastened to the seat and to the bar 71, as shown in Fig. 10. The seat may also rest on the top of the tank 11.

The supporting carriage or framefurther comprises means for spacing the tank 11 and seat 69 away from the wall or surface being painted. This spacing means comprises in' the present instance'a pair ofbase bars 60 i (Fig. 1) each of which is secured to the lower or mid-portion of the U-shaped strap 62, as seen in Fig. 7, said bars projecting forwardly and carrying at their free ends roller means to engage the surface to be painted. In the present instance, this roller means comprises a single long roller 58 mounted on a rod 59, the ends of which are received in suitable bearings on the, ends of the'bars 60. (See Figs. 5 and 6.) A pair of diagonal braces 61 extends from the forward ends of the bars 60 rearwardly and upwardly to the front legs of the U-shaped strap 62 to lend rigidity to the structure. The parts 61, 62 and 71 may be secured together at one point by nuts on the ends of the rods 64 asshown in Fig.4.

In order to permit of resting the carriage upon the ground or other horizontal surface, the bars 60 are shaped to provide a base or supporting legs by being bent downwardly from their point of attachment to the straps 62 before projecting forwardly, and the rear ends of the bars are likewise bent downwardly at 63 as clearly seen in Fig. 7.

The structure thus far described is suspended by hanger rods 65, of which there are two pairs, the lower ends of each pair being suitably connected 'to the ends of one of the straps 62, in the present instance by means "of a hook on each hanger rod engaging in a hole in the strap end as seen in Fig. 4. The upper ends of the two pairs of hanger rods 65 are suitably secured as by bolts 66 (Fig. 8) to the opposite ends of a scaffold beam 67 which may be of any suitable construction. To the middle of this beam is fastened a clip 68 which engages with the lower sheave of the hoisting tackle to be presently described.

The air brush 39 may be of any preferred construction, the one herein shown being of the well known ty e disclosed in my prior Patent No. 1,273, 84 issued July 23, 1918. Briefly the brush comprises a body 40 having a pistol grip handle 43 and triggers 44 for the control of the discharge of air and paint from the brush.

In the exemplary structure herein shown the air and paintlines are connected to a main control head 10 which is mounted in an opening in the tank 11, said head being located at the right hand side of and. close to the operators seat 69 so as to be conveniently accessible. Air is supplied from a suitable source on the ground through a hose 14 connected to a coupling on the control head 10, and the air passes from said head to the brush through a tube 46. A portion of the air from the supply tube .14 passes 'through'the control head into the paint tank to deliver pressure on the paint therein, and the paint passes through the control head and through a flexible tube 49 to the air brush 39. A suitable socket 45 (Fig.

' 11) is also provided on the control head 10 character being known in the art. They usually comprlse certain adjustments for regulating the flow and pressure of the air and paint.

By mounting the seat 69 directly over the tank 11 and locating the control head 10 at the right of the operators seat I effect a very compact and, convenient arrangementfor the operator. Furthermore, themeans 58, 59, 60, 61 for spacing the tank and seat away from the surface being painted affords room for the operators feet and legs and spaces his body at a suitable distance from such surface to permit him to work efiiciently.

In Figures 12, 13 and 14I have, illustrated an exemplary construction for the upper sheave of the locking hoisting tackle shown in Fig. 1. The upper sheave comprises an eye 72 adapted to engage a suitable hook 73 (Fig. 1) carried by the supporting structure. and in this instance carrying two pulleys 74 suitably pivoted at 75, said sheave also having a downward projection terminating in an eye 76 for the attachment of the end of the cable used. The tank is raised and lowered by taking in or letting out the strand 77 shown at the right in Fig. 12. This strand passes through a tubular socket 78 in the end of a rocker arm 79 pivoted on the pintle 75 which carries the pulleys themselves and h-avin a p-ro'ecting arm .80 carrying a pivoted roc er 81 aving a curved face suitably cut to form teeth to grip and engage the rope. Themovement of the rocker 81 is controlled by the engagement of a pin 82 in the curved slots 83 cut in the flanges 84 extending from the main body of the sheave on either side of the rocker and suitably held in spaced relation by a block 85 and rivet pin 86. It will be seen that a movement ofthe strand 77 from the position shown in Fig. 12 to the right will rotate the rocker arm around its pivot raising the projection 80, drawing the pin82 along the slots 83 and carrying the rocker 81 into engagement with the rope.

Release of the tension on the strand 77 will not unlock the parts as the tension in the portion of the rope extending over the pulley and carrying the weight of the device pulls on the rocker arm in the direction in which the rope extends. This force is' in a line tangential to the circumference of the pulley, whereas the rocker, arm is pivoted at the'center of the pulley and the turning force exerted on the rocker arm will tend to rotate it to the right, as shown in Fig. 12, and hold the rocker in locking engagement with the rope. l

The workman on the seat 69 has the brush 39 and the control head 10'- conveniently located at hisright hand. He may rest his feet on the roller 58 or against thestack 57 or both and swing himself and the entire dei the uper edge of the wall.

pick up the brush to paint the surface in front of him, and when moving to a' new unpainted surface, set the brush back on its support.

In painting a chimney, the eye 72 may be supported as illustrated in Fig. 1 When painting a wall, antrack 84 is provided (see Fig. 15) supported adjacent the top of the wall 85 by suitable hooks 86 engaging over A carriage 87 supported by suitable rollers 88 engaging the inturned flanges of the track 84 as clearly indicated in Fig. 16, carries. a hook 89 adapted to engage and support the eye- 72. In working on a wall the operator may easily move himself from side to side by pushing against the wall.

While I have illustrated and described in detail the embodiment of my invention at present preferred, it should be clearly understood that many modifications and improvements will naturally occur to persons skilled in the art. I desire the detailed descri tion to be considered as illustrative only, an aim in the subjoined claims to cover all such legitimate variations and modifications of my invention.

1 claim as my invention:

1. A pneumatic painting apparatus comprising, in combination, a receptacle adapted to contain paint, hoisting tackle adapted to be attached to the upper edge of a supporting structure or building to raise and lower said receptacle, and a frame-work on said receptacle having laterally projecting members adapted to hold said receptacle away from sald supporting structure.

2. A pneumatic painting apparatus comprising, in combination, a receptacle adapted to contain paint, an operators seat fastened to said receptacle, a pneumatic brush connected he said receptacle by flexible tubes, and hoisting tackle. adapted to raise and lower said receptacle, seat and brush and to support them at any desired elevation.

3. A pneumatic painting apparatus comprising, in combination, a receptacle, a framework on said ree tacle, said framework comprising means or attachment to a hoisting tackle, laterally projecting means adapted to keep saidreceptacle away from a 1 Wall, and means for engaging a flat horizon tal surface to support said receptacle thereon.

' 4. A pneumatic .painting apparatus comthe upper ends of said hanger rods, and a clip at the center of said beam adapted to engage a supporting member.

- 5. A pneumatic painting apparatus comprising, in combination, a receptacle, straps encircling the lower ortion of said receptacle adjacent the ens thereof and having their ends extending upwardly, hanger rods engaging the upwardly extending-ends of said straps and converging upwardly, and spacing rods extending between the ends of Lil said straps to maintain them in parallelism.

6. A pneumatic painting apparatus comprising, in combination, a receptacle, straps encircling the lower portion of said receptacle adjacent the ends thereof and having their ends extending upwardly, hanger rods engaging the upwardly extending ends of said straps and. floor rods attached to the lower portions of said straps and adapted to support said receptacle on the ground. v

7. A pneumatic painting apparatus comprisin in combination, a receptacle, straps encirc ing the lower portion of said receptacle adjacent the ends thereof and having their ends extending upwardly, hanger rods engaging the upwardly extending ends of said straps, floor rods attached to the lower portions of said straps and adapted tosupport said receptacle on the ground, said floor rods extending laterally, a roller extending -parallel to said receptacle and laterally spaced therefrom, said roller being mounted 'on and supportedby the laterally projecting ends of said floor rods, and braces extending from the end of each floor rod to the adjafor suspending said carriage from an overhead p'oint along'a vertical wall, a-horizonrtal elongated paint tank mounted in said carriage, a seat for an operator located directly over said tank, a control head on said tank at the right of the operators seat, a

pneumatic paint brush having a flexible tube connection with said control head, and means for spacing said tank and said seat from the wall to be painted to provide'room for the operators feet and legs and to position the operators body at the proper working distance from said wall.

'10. A pneumatic painting apparatus comrising, in combination, a carriage, means or suspending said carriage from an overprising, in combination, a carriage, means head point along a vertical wall, a-painttank said carriage, said tankhaving a control mounted in said carriage, a seat for the ophead in one wall, and a pneumatic paint erator overlying said tank, a pneumatic brush connected to said tank through said paint brush connected to said tank, and control head, said seat being positioned di- 16 6 means for spacing said tank and said seat rectly over said tank and said control head away from the wall to be painted. being located close to said seat and Within 11, A pneumaticpainting apparatus, comreach of the operator occupying said seat.

prising, in combination, a carriage, means In testimony whereof, I have hereunto set for suspending said carriage from an overmy hand.

.0 head point a ong a vertical wall, a paint tank and a seat for the operator mounted in J ENS A. PAASCHE. 

